acos(x) / x log(2)\ -2 *|----------- + -------|*log(2) | 3/2 2| |/ 2\ -1 + x | \\1 - x / /
/ 2 2 \ acos(x) | 1 log (2) 3*x 3*x*log(2)| 2 *|- ----------- - ----------- - ----------- + ----------|*log(2) | 3/2 3/2 5/2 2| | / 2\ / 2\ / 2\ / 2\ | \ \1 - x / \1 - x / \1 - x / \-1 + x / /